1.Force balance design makes the drill bit has good guidance quality, applicable to rotary steering system and drilling directional well with downhole motors, having smaller radial vibration.2.Reasonable arrangement with different structure of patent PDC composite on different positions makes the drill bit more aggressive and with better anti－abrasive quality.3.Strong aggressivity design ensured the bit to get high ROP.4.Dynamic flow field simulation technology used in hydraulic design enables the bottomhole flow field optimization, improves the speed of chip removal and avoids bit balling.

Master cutter Specifications

(mm)

Nozzles

Blades

Weight

(kg)

Total length

(mm)

API Conn

19.05

7

5

63

450

4-1/2REG

（KN）

Weight On Bit

（1/S）

Hydraulic Flow Rate

（RMP）

Rotation Speed

15-60

25-40

60-300

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